User Manual - pancroma

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This turned out to be a difficult image. The main problem was the mismatch inthe cultivated fields that I could never really rationalize. However, considerableimage processing was able to produce a couple of promising pan sharpenedsubset images. The next step is to apply the subset results to the full sizeLandsat scenes.373
Full sized Landsat scenes can be processed in a way that is similar to preparingsmaller subsets. I used PANCROMA TM five file utility to get started. This utilityautomatically subsets a set of five band files, typically band1, band2, band3, thepanchromatic band, and the NIR band. to the maximum common area sharedbetween them. However, I needed the Maximum Common Extents coordinatesto do so I first selected ‘File | ‘Open’ and openedL71074091_09120050303_B10.TIF and p074r091_7dt19991216_z59_10.tif. Ithen selected ‘Band Combination’ | ‘Subset Images’ | ‘Compute MaximumCommon Extents’. The coordinates of the maximum overlap area was computedas follows 1 :Maximum Extents Coordinates:upperLeftX is: 406200upperLeftY is: -4828800lowerRightX is: 658830lowerRightY is: -5050830I then clicked ‘Close Graphic Images and Reset’, and selected ‘File | ‘Open’ andopened five band files from the first scene:L71074091_09120050303_B10.TIFL71074091_09120050303_B20.TIFL71074091_09120050303_B30.TIFL71074091_09120050303_B80.TIFL71074091_09120050303_B40.TIF (enter in this order!)I then selected ‘Band Combination’ | ‘Subset Images’ | ‘Subset Five Bands’After a while, a data entry box was presented. PANCROMA TM retained theMaximum Common Extents coordinates. After a few minutes the subsets werecomputed. I selected ‘File’ | Save Subset Images’ | ‘Geotiff’ and gave thesubsetted files the root name ‘MCEA’. I clicked ‘Close Graphic Images andReset’ and then repeated the process for the second set of five files from group B(no gap):p074r091_7dt19991216_z59_10.tifp074r091_7dt19991216_z59_20.tifp074r091_7dt19991216_z59_30.tifp074r091_7dt19991216_z59_80.tifp074r091_7dt19991216_z59_40.tif1 Note: The panchromatic band for the gap set actually falls one pixel and 15m short of the bandfile MCE coordinates. The Five File subset utility will usually handle this off-by-one Landsatissue. However, other PANCROMA TM utilities may not. For example, if I had chosen the Six Filemethod, it would have been necessary to manually adjust the computed MCE coordinates downby 30m (not 15m!) from the computed values.374
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1. What Is PANCROMA TM ? ..........
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Compute Single Histogram...........
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67. Tutorial - Pan Sharpening Full
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2. What Useful Things Can PANCROMA
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4. PANCROMA TM Features____________
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5. System Requirements_____________
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7. Getting Started_________________
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Each color and NIR band channel con
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determine if one number is differen
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will be shown at the bottom of the
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12. File I/O_______________________
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13. System Variables_______________
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14. Display________________________
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15. The PANCROMA User Interface____
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not find this file , you will be pr
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If you check the ‘Generate Graysc
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19. Image Subsetting_______________
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IMPORTANT NOTE: There is a check bo
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IMPORTANT NOTE: Saving and opening
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When the Input Box becomes visible,
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20. Batch Subsetting_______________
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21. Quick Start - Pan Sharpening an
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During the internal processing of t
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is unlikely that the settings will
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The default method is checked. The
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around 4000 rows by 4000 columns. I
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the ‘Pan Sharpening Pre Processin
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lowerLimit upperLimitThe following
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Another type of unwanted artifact i
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matching algorithm to be applied. T
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25. ENHG Algorithm - Manual Method_
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The next image is the result of pan
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26. ENHG Algorithm - Automatic Meth
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Next, compute the XIONG file. Open
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The XIONG algorithm is one of the m
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29. AJISANE Algorithm______________
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An example of a pan sharpened image
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The spectral match is indicated by
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You must be careful when selecting
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31. ELIN Local Optimization Algorit
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IMPORTANT NOTE: Regions of high con
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Add the green band and the red band
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33. Pan Sharpen Batch File Processi
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34. Working with SPOT® Data_______
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the special image processing utilit
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35. Working with ASTER Data________
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36. Working with Formosat-2 Data___
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100
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ALI data is similar to Landsat with
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38. Working with Digital Globe® Da
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spectral transmission of the telesc
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ow. Make sure you check this before
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40. Working with Landsat Surface Re
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41. Working with Landsat GEOCOVER D
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foreground and background applicati
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GEOCOVER can offer a very attractiv
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After navigation and selecting your
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Although not designed as a data sou
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44. Working with USGS DOQQ and NAPP
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46. Working with MODIS Surface Refl
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47. Working with RapidEye Data_____
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The Transfer method processes the f
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using the PANCROMA TM ‘Preprocess
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and band 5 (MIR) also be input. Thi
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134
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50. Automatic Image Registration of
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The next two images are the registe
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At the present time, PANCROMA TM ca
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Since only a portion of EMR reachin
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144
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‘File’ | ‘Open’. After your
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Haze reduction may be useful in con
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Save your image using GeoTiff file
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The correction is made according to
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54. Image Processing Utilities - Gr
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Input Channel Adjust Group Utility
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55. Image Processing Utilities - SP
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56. Image Processing Utilities - AS
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57. Image Processing Utilities - Pa
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Channel Level AdjustPANCROMA TM pro
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ENHG Scale FactorThe ENHG slider ba
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59. Image Preprocessing____________
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select ‘File’ | ‘Open’ and
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Analyzer. Doubling is done by first
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high pixel brightness in one image
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There are a few rules of thumb rega
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You will need three control points
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• image resampling• geometric m
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ROWS groupsFirst row of dataSecond
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Where QCAL are the calibrated image
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When you select ‘OK’ the surfac
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The rendering below shows a color t
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Q cal = Quantized and calibrated st
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A section of a SPOT metadata file s
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Temperature (measured in degrees Ke
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Calibration requires multiplication
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NIR band, band 2 (green) and band 3
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and 1 (Brightness, a measure of soi
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X-Y Band Scatter PlotsA scatter plo
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presented. Check the ‘Compute Lin
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PANCROMA TM has a utility for regre
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60. Image Post Processing__________
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You can adjust weighting factors fo
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Unsupervised ClassificationUnsuperv
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214
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Grayscale and Color Image TilingIt
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GeoreferencingPANCROMA TM has a uti
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61. Spectral Analysis______________
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When you click ‘OK’, the select
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The plot shows all of the computed
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PANCROMA TM computed that the cover
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Landsat Reflectance Point Spectrum
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SPOT ® Point Spectrum Generator TM
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will become disabled and the Color
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When the ‘Zoom Disabled’ radio
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Digital spectra are recorded for mi
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The next step is to overlay the Lan
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http://www.science.aster.ersdac.or.
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Although the run was not successful
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The pan sharpened image was created
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Now select ‘Spectral Analysis’
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RapidEye ® Spectral Analyzer TMSpe
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Click ‘OK’. The TOA Reflectance
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The second plot is shown below, dis
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have to rationalize the file sizes.
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Euclidean Distance Fraction TM Anal
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The idea is to adjust the included
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In addition to Landsat 7, Spectral
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Low numbers mean high discriminatio
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Copyright USGSAlthough this data is
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Note that the band 6 (TIR) track ba
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higher (whiter) the grayscale pixel
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The table with the manually input r
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this does not correspond to physica
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L71005068_06820030919_B10.TIFL71005
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L71005068_06820040804_B50.TIFL71005
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278
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The parameters are as follows:Compu
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Object Oriented ClassificationPANCR
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to the other. For example a filter
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carefully. PANCROMA TM is able to p
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Landsat imageImage magnitude spectr
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Considerable smoothing has occurred
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IMPORTANT NOTE: In reality, the con
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The following is an example of an i
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In order to deconvolve using fixed
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63. Writing an Index File for an SR
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It will be saved as a .dat file. A
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64. Processing Huge Files and File
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My area of interest for this image
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Now we will start the pan sharpenin
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66. Tutorial - Pan Sharpened Image
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The next step will be to create an
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The panchromatic image is the one i
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And my result looked like this:As y
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67. Tutorial - Pan Sharpening Full
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68. Tutorial - Gap Filling using Tr
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Page 333 and 334: Another reason to keep the Search E
Page 335 and 336: Gap Filled Grayscale ImageGap Fille
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Page 343 and 344: It is also apparent that the graysc
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Page 359 and 360: From Next PageSection 13Subset One
Page 361 and 362: I again selected ‘Close Graphic I
Page 363 and 364: I then selected ‘Pan Sharpening
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Page 373: I also prepared an image using the
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Page 379 and 380: The following image is the RGB colo
Page 381 and 382: Press ‘OK’. The transformed gra
Page 383 and 384: However it is close enough to illus
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Page 397 and 398: 88. Pan Sharpened Image: EO-1 Mount
Page 399: Multiple Linear Regression, 205Mult
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